Alaska earthquakes

M1.9 earthquake 75 km SW of Unalaska, Alaska

A magnitude 1.9 earthquake struck 75 km SW of Unalaska, Alaska on Sun, Aug 16, 2020, 2:16 AM AKDT (10:16 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M5.7 43 km ESE of Nikolski, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-08-16 10:16:09 UTC
Depth
9.0 km (5.6 mi), shallow
Epicenter
53.381° N, 167.315° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
26

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 69 in the 60 days after this one and 36 in the 30 days before it.

After

  1. 2.276 km SSW of Unalaska, Alaska · 2239 days ago · 28 km deep · 41 km away
  2. 1.962 km SW of Unalaska, Alaska · 2239 days ago · 6 km deep · 16 km away
  3. 2.061 km SW of Unalaska, Alaska · 2239 days ago · 14 km deep · 19 km away
  4. 1.5103 km SSW of Unalaska, Alaska · 2239 days ago · 48 km deep · 35 km away
  5. 1.714 km WSW of Dutch Harbor, Alaska · 2237 days ago · 6 km deep · 64 km away
  6. 1.566 km SW of Unalaska, Alaska · 2237 days ago · 97 km deep · 13 km away
  7. 3.554 km ESE of Nikolski, Alaska · 2236 days ago · 46 km deep · 89 km away
  8. 2.588 km E of Nikolski, Alaska · 2236 days ago · 28 km deep · 37 km away
  9. 1.514 km WSW of Dutch Harbor, Alaska · 2234 days ago · 10 km deep · 64 km away
  10. 1.676 km SSW of Unalaska, Alaska · 2234 days ago · 30 km deep · 42 km away
  11. 1.949 km ESE of Nikolski, Alaska · 2232 days ago · 49 km deep · 81 km away
  12. 2.682 km E of Nikolski, Alaska · 2232 days ago · 32 km deep · 54 km away
  13. 1.515 km WSW of Dutch Harbor, Alaska · 2232 days ago · 6 km deep · 64 km away
  14. 1.877 km E of Nikolski, Alaska · 2232 days ago · 37 km deep · 53 km away
  15. 1.814 km WSW of Dutch Harbor, Alaska · 2231 days ago · 8 km deep · 65 km away
  16. 1.542 km SW of Unalaska, Alaska · 2229 days ago · 17 km deep · 35 km away
  17. 1.861 km WSW of Unalaska, Alaska · 2229 days ago · 10 km deep · 25 km away
  18. 1.715 km W of Dutch Harbor, Alaska · 2229 days ago · 7 km deep · 65 km away
  19. 2.2103 km SSW of Unalaska, Alaska · 2227 days ago · 78 km deep · 45 km away
  20. 3.752 km ESE of Nikolski, Alaska · 2227 days ago · 35 km deep · 94 km away
  21. 1.938 km SW of Unalaska, Alaska · 2225 days ago · 76 km deep · 37 km away
  22. 1.546 km ESE of Unalaska, Alaska · 2221 days ago · 34 km deep · 99 km away
  23. 3.1104 km S of Unalaska, Alaska · 2220 days ago · 40 km deep · 65 km away
  24. 2.170 km WSW of Unalaska, Alaska · 2219 days ago · 6 km deep · 18 km away
  25. 1.614 km SSW of Unalaska, Alaska · 2218 days ago · 82 km deep · 61 km away
  26. 1.881 km WSW of Unalaska, Alaska · 2217 days ago · 81 km deep · 20 km away
  27. 1.593 km ESE of Nikolski, Alaska · 2217 days ago · 26 km deep · 79 km away
  28. 2.183 km S of Unalaska, Alaska · 2215 days ago · 26 km deep · 46 km away
  29. 3.281 km SSW of Unalaska, Alaska · 2215 days ago · 35 km deep · 43 km away
  30. 2.929 km SW of Unalaska, Alaska · 2214 days ago · 77 km deep · 46 km away
  31. 1.915 km WSW of Dutch Harbor, Alaska · 2212 days ago · 3 km deep · 63 km away
  32. 2.378 km NE of Nikolski, Alaska · 2212 days ago · 144 km deep · 56 km away
  33. 1.615 km WSW of Dutch Harbor, Alaska · 2212 days ago · 7 km deep · 64 km away
  34. 3.241 km ESE of Unalaska, Alaska · 2212 days ago · 36 km deep · 100 km away
  35. 1.871 km ESE of Nikolski, Alaska · 2211 days ago · 11 km deep · 86 km away
  36. 3.377 km SSE of Unalaska, Alaska · 2210 days ago · 58 km deep · 85 km away
  37. 1.820 km NE of Dutch Harbor, Alaska · 2207 days ago · 99 km deep · 97 km away
  38. 1.891 km E of Nikolski, Alaska · 2206 days ago · 48 km deep · 45 km away
  39. 1.568 km SW of Unalaska, Alaska · 2206 days ago · 13 km deep · 10 km away
  40. 1.991 km E of Nikolski, Alaska · 2205 days ago · 26 km deep · 61 km away
  41. 2.558 km S of Unalaska, Alaska · 2205 days ago · 72 km deep · 44 km away
  42. 3.2100 km E of Nikolski, Alaska · 2204 days ago · 35 km deep · 66 km away
  43. 3.394 km E of Nikolski, Alaska · 2204 days ago · 35 km deep · 63 km away
  44. 2.283 km WSW of Unalaska, Alaska · 2203 days ago · 118 km deep · 33 km away
  45. 2.883 km E of Nikolski, Alaska · 2202 days ago · 58 km deep · 40 km away
  46. 2.236 km ENE of Nikolski, Alaska · 2200 days ago · 107 km deep · 78 km away
  47. 1.538 km SE of Unalaska, Alaska · 2197 days ago · 32 km deep · 79 km away
  48. 1.887 km SSW of Unalaska, Alaska · 2192 days ago · 17 km deep · 33 km away
  49. 1.896 km SSW of Unalaska, Alaska · 2191 days ago · 39 km deep · 28 km away
  50. 3.467 km ESE of Nikolski, Alaska · 2188 days ago · 35 km deep · 84 km away
  51. 5.743 km ESE of Nikolski, Alaska · 2188 days ago · 32 km deep · 93 km away · felt by 1 · tsunami flag
  52. 3.264 km SE of Nikolski, Alaska · 2187 days ago · 27 km deep · 98 km away
  53. 3.144 km ESE of Nikolski, Alaska · 2187 days ago · 35 km deep · 88 km away
  54. 3.457 km ESE of Nikolski, Alaska · 2187 days ago · 35 km deep · 95 km away
  55. 3.659 km ESE of Nikolski, Alaska · 2187 days ago · 30 km deep · 96 km away
  56. 2.956 km ESE of Nikolski, Alaska · 2187 days ago · 34 km deep · 92 km away
  57. 2.860 km ESE of Nikolski, Alaska · 2187 days ago · 35 km deep · 93 km away
  58. 2.961 km SE of Nikolski, Alaska · 2186 days ago · 35 km deep · 99 km away
  59. 2.238 km E of Nikolski, Alaska · 2186 days ago · 54 km deep · 86 km away
  60. 2.951 km ESE of Nikolski, Alaska · 2185 days ago · 29 km deep · 91 km away

The first 60 of 69.

Before

  1. 1.644 km E of Nikolski, Alaska · 2241 days ago · 25 km deep · 80 km away
  2. 2.626 km S of Unalaska, Alaska · 2241 days ago · 87 km deep · 61 km away
  3. 1.514 km WSW of Dutch Harbor, Alaska · 2241 days ago · 6 km deep · 64 km away
  4. 1.614 km WSW of Dutch Harbor, Alaska · 2243 days ago · 7 km deep · 64 km away
  5. 3.384 km SSW of Unalaska, Alaska · 2243 days ago · 14 km deep · 21 km away
  6. 1.952 km SSE of Unalaska, Alaska · 2245 days ago · 50 km deep · 72 km away
  7. 2.999 km E of Nikolski, Alaska · 2246 days ago · 35 km deep · 41 km away
  8. 2.2139 km ESE of Nikolski, Alaska · 2246 days ago · 74 km deep · 92 km away
  9. 1.677 km SW of Unalaska, Alaska · 2246 days ago · 13 km deep · 5 km away
  10. 1.657 km SSE of Unalaska, Alaska · 2246 days ago · 42 km deep · 83 km away
  11. 2.185 km SSW of Unalaska, Alaska · 2247 days ago · 26 km deep · 42 km away
  12. 1.89 km SSE of Unalaska, Alaska · 2248 days ago · 83 km deep · 71 km away
  13. 1.859 km SW of Unalaska, Alaska · 2248 days ago · 73 km deep · 18 km away
  14. 1.617 km WSW of Dutch Harbor, Alaska · 2253 days ago · 5 km deep · 62 km away
  15. 1.518 km W of Dutch Harbor, Alaska · 2253 days ago · 2 km deep · 64 km away
  16. 2.518 km W of Dutch Harbor, Alaska · 2253 days ago · 6 km deep · 63 km away
  17. 1.717 km WSW of Dutch Harbor, Alaska · 2253 days ago · 7 km deep · 61 km away
  18. 1.696 km SSW of Unalaska, Alaska · 2254 days ago · 40 km deep · 29 km away
  19. 1.837 km ESE of Nikolski, Alaska · 2255 days ago · 42 km deep · 99 km away
  20. 1.513 km W of Dutch Harbor, Alaska · 2256 days ago · 7 km deep · 66 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020aiw498e. Read Mon, Oct 5, 2026, 3:19 AM UTC.